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2 years ago

The form of energy that can move from place to place across the universe is . On Earth, the main source of this energy is .

2 answers:

5 0

The form of energy that can move from place to place across the universe is light energy. On earth, the main source of this energy is Sun. Most of the light energy comes from the sun because it is the primary source of all the energies. The food, fossil fuels, movement of winds, etc all exists due to Sun. Without sun, there won't be any light energy on the earth. In all the processes which occur on earth has a direct or indirect involvement of light energy which comes from sun.

iren2701 [21]2 years ago

5 0

Answer: Light energy; sunlight

Explanation:

The form of energy that can move from one place to another is light energy. The energy of light depends on the intensity.

Sunlight is the main source of energy on earth, this gives rise to other forms of energy available on earth.

Plants consume light energy to make food which is a source of energy for all other live forms on earth.

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As you increase current, what happens to the strength of an electromagnet?

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As you increase current, the strength of an electromagnet intensifies.

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3 years ago

When you cut a object does the density same the same between the two objects or no and if no what will happen

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2 years ago

A train travelling at 20m/s undergoes a uniform deceleration of 2m/s2 when brakes are applied.. calculate the time taken to come

VLD [36.1K]

Answer:

a) 10 seconds

b) 100 meters

Explanation:

<u>Accelerated Motion </u>

If an object is moving at contant speed, we know it has zero net force applied. As soon as an unbalanced force appears, the object accelerates (positive or negative) depending on the direction of the force with respect to movement. The speed of an object subject to acceleration is given by

$v_f=v_o+at$

The distance traveled is given by

$\displaystyle x=v_ot+\frac{at^2}{2}$

Our train is travelling at 20m/s when it decelerates at $-2\ m/s^2$ (negative for it's against movement). If nothing else happens, it will eventually stop ( $v_f=0$ ). We can compute the time at which it happens :

$\displaystyle t=\frac{v_f-v_o}{a}$

$Knowing\ v_f=0$

$\displaystyle t=\frac{-20}{-2}=10\ sec$

The distance traveled is

$\displaystyle x=v_ot+\frac{at^2}{2}$

$\displaystyle x=(20)(10)-\frac{2(10)^2}{2}$

$\displaystyle x=100\ m$

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2 years ago

if a ball is rolling at a velocity of 1.5 m/sec and has the momentum of 10.0 kg m/sec, what is the mass of the ball?

PolarNik [594]

Okay. There is a simple formula to go with this where:

p = mv

P: Momentum.
M: Mass.
V: Velocity

Sub the numbers in and solve for M.

10.0 = m(1.5)
10.0/1.5 = m
6.67 kg = m

Therefore the mass of the ball is 6.67kg.

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2 years ago

An airplane starts at rest and accelerates at 6.8 m/s2 at an angle of 39° south of west. After 9 s, how far in the westerly dire

cestrela7 [59]

Answer:36.8

Explanation:

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3 years ago